package com.test.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class LoginServlet
 */
public class LoginServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public LoginServlet() {
		super();
		// TODO Auto-generated constructor stub
	}

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

		String userName = request.getParameter("userName");
		String password = request.getParameter("password");

		if ((userName != null && userName.trim().length() > 0)
				&& (password != null && password.trim().length() > 0))

		{
			HttpSession session = request.getSession(true);

			if (!session.isNew()) {
				session.invalidate();
				session = request.getSession(true);
			}

			session.setAttribute("userName", userName);
			session.setAttribute("password", password);

		}

		response.setContentType("text/html");

		PrintWriter out = response.getWriter();

		String body = "<a  href=\"welcome\">Click Here for Your Personal Page </a>";

		out.print("<html><head><title> Welcome Mr." + userName
				+ "</title> </head><body>" + body + " </html>");

	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}

}
